Spatiotemporal dynamics and coupling analysis of gross primary productivity and evapotranspiration in the Qinling–Daba Mountains
• GLASS, MODIS, and PML were used to analyze mountain GPP-ET dynamics. • GPP increased then declined with elevation, while ET showed weaker dependence. • GPP-ET coupling was strongest at middle elevations during growing seasons. • GPP-ET coupling was strongest at low elevations during non-growing seasons. • Inter-product inconsistency showed topographic and temporal amplification.
Authors
- Bing Cheng
- Xuyang Lu (ORCID: https://orcid.org/0000-0001-6653-6009)
- Jianbo Tan (ORCID: https://orcid.org/0000-0002-1483-5995)
- Xinyao Xie (ORCID: https://orcid.org/0009-0003-1940-8700)
- Yong Wang (ORCID: https://orcid.org/0009-0005-6274-8895)
Institutions
- Chinese Academy of Sciences (CN)
- Institute of Mountain Hazards and Environment (CN)
- Changsha University of Science and Technology (CN)
Publication Details
- Journal
- International Journal of Applied Earth Observation and Geoinformation
- Published
- 2026-05-22
- DOI
- https://doi.org/10.1016/j.jag.2026.105356
- Primary Topic
- Plant Water Relations and Carbon Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Ministry of Science and Technology of the People's Republic of China
- Youth Innovation Promotion Association of the Chinese Academy of Sciences